Shade roller



April 12 1927.

H. F. HUSTED SHADE ROLLER Filed 001,.25, 1926 ATTORNEY.

Patented Apr. 12, 1927.

UNITED STATES PATENT OFFICE.

HARRY F. HUSTED, OF SHAVERTOWN, PENNSYLVANIA, ASSIGNOR OF ONE-THIRD TO EDMOND C. WIDEMAN AND ONE-THIRD T0 HARRY D. LEVY, BOTH. OF WILKES- BARRE, PENNSYLVANIA.

SHADE ROLLER.

' Application filed October 25, 1926.

The invention relates to a window shade fixture or attachment, and more particularly to the class of safety devices or braking mechanisms for use with window shades or the like.

The primary object of the invention is the provision of an attachment or device of this character, wherein the window shade is capable of being raised or lowered for adjustment thereof relative to the window and held in adjusted position, but in event that the shade during the act of adjustment thereof should slip out of the hand of the op erator it will be retarded from becoming completely wound upon its roller, as such attachment or device will automatically become active to check the winding action of the roller and thus lock the shade at a predetermined point of the winding action of the roller and thus eliminate the possibility of the shade becoming completely wound thereon.

Another object of the invention isthe provision of an attachment or device of this character, wherein the construction thereof permits the same to be attached to a window shade roller at one end thereof, without requiring any alteration in the roller and will constitute one fixture or bracket for such roller for the hanging of the shade and its roller upon a window frame, the braking mechanism of the attachment or device being of novel form to render the same automatic in its action to retard the shade from becoming completely wound upon the roller, should said shade slip from the hand of an operator while adjusting it relative to the window frame with which the same is associated.

A further object of the invention is the provision of an attachment or device of this character, wherein the braking mechanism thereof is concealed, so as not to detract from the usual or ordinary appearance of a window shade and its roller when hung upon a window and is passive, when the shade is being adjusted under ordinary conditions, but will become active'for the braking of the roller when the latter is rotated Serial N0. 144,007.

the provision of an attachment or device of this character which is comparatively simple in construction, thoroughly reliable and efiicient in *its purpose, readily and easily attached to a shade roller, strong, durable,

and inexpensive to manufacture and install. With these and other objects in view, the

inventionconsists in the features of con- Figure 2 an enlarged fragmentary hori- Zontal sectional view taken on the line 2-2 of Figure 1 looking in the direction of the arrows.

Figure 3 is a. sectional view taken on the line 3-3 of Figure 2 looking in the direction of the arrows.

Figure 4 is a sectional view on the linev 4.-4 of Figure 2 looking in the direction of the arrows.

Figure 5 is a sectional View on the line 5-5 of Figure 2 looking in the direction of the arrows.

Figure 6 is a sectional view on the line 6-6 of Figure 2 looking in the direction of the arrows.

Figure 7 is a detailed side elevation of the pivot support for the latch dog of the attachment or device. the dog being removed and the pivot support detached from its base.

Similar reference characters indicate corresponding parts throughout the several views in the drawing.

' Referring to the drawing in detail A designates generally a portion of a window frame of the'usual or ordinary construction, B a portion of the upper sash. which is raised or lowered in the window frame in the usual well known manner. Upon the head of the window frame Ais supported the shade roller 10 of the spring wound type carrying the window shade 11 which is adapted to be wound on and unwound from said roller 10 in the customarymanner for locking position.

the adjustment of the shade 11 relative to the window. At one end of the roller 10 is arranged the ordinary well known spring tensioned ratchet latched trunnion .12 removably locked in a shade roller bracket 13 of the ordinary well known type, which latter is permanently fastened upon the window frame A as usual.

Adapted to be connected to the shade roller 10 at its other end opposite the trunnion 12 isthe attachment or device constituting the invention, which comprises a journal pin havinga pointed tapering piercing portion 13' squared in cross section and an outer rounded. trunnion portion 14, the portion 13 being adapted to be driven centrally into the roller 10 as is shown in Figure 2 of the drawing. This journal pin has'fixed thereon intermediate its ends a disc 15 which is adapted to abut against the end of the roller 10 adjacent thereto, when the journal pin is driven into said roller. Eccentrically mounted in the disc 15 is a stepped pivot, 16. the same having an outer headed end'17, while the opposite end is riveted or otherwise fixed in the disc 15. Swingingly supported upon the pivot 16 at the larger por tion thereof next to the disc 15 is a ratchet pawl or dog 18, the latter being cut away at one side at the inner half of its length to provide a shoulder 19, with which en gages'the .end 20, of a tensioning spring formed with coils or convolutions 21 trained about the smaller portion of the pivot 16,

the other end 22 of said spring being bent about the journal pin at its rounded outer end portion 14 thereof. This spring serves to hold the pawl or dog 18 normally against the journal pin in normally unlatching or The head 17 retains the spring upon the pivot 16 as will be clearly apparent in Figure 2 of the drawing.

The rounded end portion 14 of the journal pin is adapted to be removably fitted in a bearing 23 fixed in a hanger or bracket 24 adapted to be permanently secured to the window frame A opposite the bracket 13, to constitute acompanion therefor to support the window shade and its-roller upon said window frame as isclearly apparent in Figure 1 of the drawing. This bearing 23 has supported thereon a drum 25, which is in'theform of a cup shapedshell and con- I stitutes a housing for the braking mech-- anism including the disc 15 andpawl or dog 18, the drum or shell being designed to abut the roller 10, when the latter is mounted in the bracket. This roller 10 at itsend next to the drum or shell 25 closes the latter which is openthroughout at its inner end.

. The drum or shell has-struck inwardly fromits outer periphery a tooth or'abutrnent' 26 which protrudes within said drum or shell 25- and is adapted to be engaged by the pawl or doga18, when the-latter has been swung from position as shown by full lines in Figure 3 to the locking or braking position shown by dotted lines in said Figure 3 of the drawing.

The drum or shell. 25 is free upon. the bearing 23 which supports a resilient washer 27 confined between said drum or shell 25 and the bracket 24L, so as to frictionally bind upon the drum or shell 25 to prevent normal rotation thereof upon the bearing and in this manner said washer 27 constitutes a brake, while the pawl or dog 18 serves as a locking medium between the roller and said drumor shell 25.

In the use of the attachment or device the bracket 24: is mounted upon the window frame A opposite the bracket 13 and the roller 10 is journalled in these brackets, the trnnnions 12 and lt being detachablyengaged in the respective brackets as will be apparent. New with the attachment or device in association with the roller 10 on ordinary adjustment of the shade 11 by the winding of said shade thereon or its unwinding therefrom the same can be regulated in the usual well known manner for positioning the shade 11 relative to the window A at any desired point throughout the length of the latter. Should the shade 11' during the act of adjustment thereof slip from the hand of the manipulator the roller 10 under excessive tension thereof will rotate at a rapid speed and this will cause the pawl or dog 18 toswing outwardly against the action of the spring acting thereon to project into the path of the abutment or tooth 26 on'the drum or shell 25, thus looking the roller and drum or shell 25 together, the latter being in frictionally contacting,

relation to the resilient washer 27. Said drum or shell 25 will be retarded against rotation and instantly become stopped, thereby arresting the shade 11 and thus preventing the same from becoming completely wound upon the roller.

It will be apparent that the shade 11 when accidentally released from the hand of the manipulator will be automatically stopped from winding action upon the roller 10- irrespective of the extent the said shade has been unwound from the roller and in this manner checked from becoming completely Wound upon the roller, which is not only a nuisance, but laborious to the manipulator of the shade for readjustment thereof when it slips from the hands of the manipulator.

From the foregoing it is thought that the a shade roller, means frictionally engaging construction and manner of operation of the attachment or device will be clearly understood and therefore a more extended explanation has been omitted.

\Vhat is claimed is 1-- 1. In a device of the character described, a. fixed support, rotatable means automatically controlled by a shade roller and frictioually engaging said support, and latching means adapted to be actuated by the shade roller to lock the friction means therewith.

2. In a device of the character described, a fixed support, rotatable means automatically controlled by a shade roller and frictionally engaging said support, latching means adapted to be actuated by the shade roller to lock the friction means therewith, and means for fastening the latching means to a shade roller.

3. In a device of the character described, a support, rotatable means automatically controlled by a shade roller and frictionally engaging said support, latching means adapted to be actuated by a shade roller to lock the friction means therewith, means for fastening the latching means to a shade roller, and a bearing in the frictionally held means for said fastening means.

4. In a device of the character described, a support, rotatable means automatically controlled by a shade roller and frietionally engaging said support and spring tensioned automatically operated latching means adapted to be fastened to the shade roller to lock the friction means therewith.

5. The combination with a bracket, of a rotatable drum supported thereby and adapted to be automatically controlled by the drum to normally hold it against rotation, a journal pin adapted to engage in the end of a shade roller, a disc secured on the pin and confined within the drum, and a spring tensioned pawl on the disc and adapted to lock with the drum.

6. I11 a device of the character described, a bracket, a bearing fixed in the bracket, a drum rotatably supported on the bearing, frictional means engaging the bracket and drum to hold the latter normally against rotation, a journal pin adapted to be fastened in the end of a shade roller and removably engaged in the journal on the bracket, and a spring tensioned latching pawl eccentrically pivoted relative to the journal pin and engageable with the drum to lock the latter to the shade roller, said pawl being normally out of engagement with the drum and automatically actuated to latching position by excessive speed of the shade roller when rotated.

7. In a device of the character described, a bracket, a bearing sleeve carried by said bracket, said bearing sleeve being flanged at its end remote from said bracket, a frictional braking means rotatably mounted on said bearing sleeve comprising a drum and friction disc and secured thereon by said flange, a pintle adapted to be secured to the end of a shade roller and supported at its outer end in said bearing sleeve, and means secured to and carried by said pintle for automatic engagement with said braking element for the purposes set forth.

In testimony whereof, I aflix my signature hereto. V

HARRY F. HUSTED. 

